I remember you saying that about milling with the top of the bar. Makes complete sense. The question I have is how much does the powerhead want to push itself out of the log doing it this way. Naturally using the bottom of the bar the powerhead pull itself HARD right up to the side of the log.. all I can imagine is fighting to keep the power head in the log using the top of the bar.A small carbide to place the center wanted, pilot for next bit which is oiled profusely. I've drllied center of sprockets to use a vertical bar held by 1/4" 20 thru that hole gains more than an inch of milling reach
Something else I do is to mill with the "top" of the bar, that's where the power head pumps the oil anyway
But as I said. Iv never done it so im obviously missing something